Gage-cock.



No. 801,886. PATENTED OCT. 1'7, 1905. F. W. LEIDEGKER..

GAGE (300K.

APPLICATION FILED MAY 1651905.

2 SHEETSSHEET 1.-

No. 801,886. PATENTED OCT. 17, 1905. P. W. LEIDEOKER.

GAGE COCK.

APPLIOATION FILED MAY 16. 1905.

2 SHEETS-SHEET 2.

' Emit Wllgi/dflfij Witnesses v Inventor Attorneys STATES PATENT OFFIGF.

FRANK WALLACE LEIDECKER, OF MARIETTA, OHIO, ASSIGNOR TO LEIDEOKER GAUGE COMPANY, OF MARIETTA, OHIO.

GAGE-COCK.

No. 801,8b6.

Specification of Letters Patent.

Patented Oct. 1'7, 1905.

Application filed May 16, 1905. Serial No. 260,690.

To It whom, it may concern.-

Be it known that I, FRANK WALLAon LEI- DECKER, a citizen of the United States, residing at Marietta, in the county of Washington and State of Ohio, have invented a new and useful Gage-Cock, of which the following is a specification.

This invention relates to improvements in gage-cocks for denoting the stage of water in steam-boilers, and has for its object to improve the construction and increase the efliciency and utility of devices of this character.

With these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which corresponding parts are denoted by like designatnating characters, is illustrated the preferred form of embodiment of the invention capable of carrying the same into practical operation, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages.

In the drawings, Figure 1 is a side elevation, partly in section, of the improved device applied. Figs. 2 and 3 are detached perspective views of the two principal members of the improved device, illustrating their construction. Fig.4 is a side elevation of a portion of the device, illustrating a modification in the construction. Fig. 5 is a sectional view illustrating another modified construction. Fig. 6 is a transverse section on the line 6 6 of Fig. 5. Fig. 7 is a plan view of the device as shown in Fig. 1. Fig. 8 is a view similar to Fig. 1 with the device arranged in open or released position. Figs. 9, 10, 11, and 12 are perspective views of the stop member, valveplug, outer valve, and operating -stem detached.

The improved device comprises a body portion 10, exteriorly threaded for insertion through the boiler-shell, (indicated at 11,) the body portion having a longitudinal aperture 12 and a chamber 13 at the inner end and a shell 14 at the outer end, the shell likewise having an internal chamber 15, the two chambers forming enlarged continuations of the aperture at opposite ends of the body member. Extending through the lower side of the shell 14 is an aperture 31 for the escape of the steam or hot water after it passes the valve 18, as hereinafter explained. Movably engaging the aperture 12 is a stem 16, longer than the aperture and of less diameter than the same and preferably formed from a flat metal strip twisted into screw-like form, as shown, so that as the steam or hot water rushes through the aperture the stem will be rapidly revolved. and thus eflicctually prevent the ad cumulation of sediment or scale within the aperture, as hereinafter explained.

Disposed within the chamber 13 is a valve 17, preferably in globular form, for bearing upon a seat at the inner end of the aperture 12, and similarly disposed in the chamber 14 is a valve 18, also preferably in globular form and bearing upon a seat at the outer end of the aperture. The stem 16 being longer than the aperture 12 and the valves 17 18 bearing against the ends of the stem, it is obvious that when the valve 18 is fully seated, as in Figs. 1 and 5, the valve 17 will be held in unseated position by the stem, and when the valve 18 is unseated to a limited extent the valve 17 will also be unseated, so that the steamer hot water can pass through the aperture. The outer end of the chamber 13 is contracted to prevent the displacement of the valve 17, and this contraction may be produced by an annular screw-plug, as at 19 in Figs. 1 and 8, or by compressing the outer end of the chamber after the valve is inserted at 20, as in Figs. 4 and 5. Movably engaging the outer chamber 15 is a plug 21, having a cavity in the inner end for bearing over the outer valve 18 and extending beyond the outer face of the shell 14. The upper face of the shell 14 is formed with a transverse channel 22, in which a transverse bar 23 upon a frame 24 is rotatively disposed, the frame having spaced sides bearing upon opposite sides of the shell.

The free end of the frame is provided with a stud 25, upon which a weight 26 is support.

ed by a set-screw 27, as in Figs. 1, 7, and 8, or the stud may be provided with a threaded aperture for receiving a threaded member 28, having a hand-wheel 29, as in Fig. 5.

When the weight is employed, the latter will cause the frame 24 to bear against the outer end of the plug 21 and compress the Valve 18 firmly against its seat and at the same time cause the stem 16 to hold the valve 17 unseated.

When the screw member is employed, clampscrews 30 will be supplied to secure the frame 24 immovably upon the shell 14, as the swinging movement of the frame is not required in this modified construction. If now the weight 26 is elevated or the screw 28 rotated backwardly to a limited extent, both the valves 17 18 will be unseated and the steam or hot water left free to pass through the apertures 81, and the same results will follow if the member 28 be rotated rearwardly to a limited extent.

For ordinary stationary boilers the weight will be preferable; but for locomotives, traction-engines. and the like the screw member will be employed, as the jarring and concussion of the movable boilers would be liable to misplace the weight and cause the premature operation of the device.

In Figs. 1 and 7 a plate 32 is attached, as by a clamp-screw 33, to the member 10 and extending over the frame 24 to limit the upward movement of the weighted frame,so that the movement will not be extended to a sufficient extent to cause the action of the valve 17 A modified form of the stop means is shown in Fig. 4, consisting in extending the frame member 24:, as at 34, and disposing a stopscrew 35 therein for extending beneath the shell portion 14 and accomplishing the same results as the plate 82.

If it is desired to dismcmber the device for repairs or cleansing the parts, it is only necessary to release the stops 32 or 35, as the case may be, and elevate the frame 24: into the position shown in Fig. 8, which will release the plug 21, valve 18, and stem 16 and permit the seating of the valve 17 upon the inner end of the aperture 12 and prevent any escape of steam or hot water. The members 16 to 18, and 21 can then be removed and the frame 24 and its weight or screw member also detached, if required. Broken or worn parts can thus be easily renewed and without danger of the escape of the steam or hot water.

Another great advantage of this device is that no injury can happen to the operators from accidentally elevating the weighted frame too high or from turning the screw member too far to the rear, as the instant the plug 21 is released beyond a certain point the valve 17 is automatically closed and the undue escape of steam or hot water shut off.

The chamber 13 is shown in Figs. 4 and 5 provided with transverse apertures 36 to increase the inlet area thereto and at the same 2. In a gage-cock, a body portion having a longitudinal aperture and enlarged valvechambers at the ends of said aperture, a valve confined in the inner chamber, a so'cketed plug slidable in the outer chamber the latter being provided with an exit-aperture for which said plug constitutes a closure, a ball-valve in the socketed plug, a stem seated in the bore between the valve-chambers and of a length exceeding that of said bore, and means for forcing the valve-bearing plug in an inward direction to place the valve in a seated position.

3. In a gage-cock, a body having a cylindrical chamber at the outer end of a steam and water passage, the wall of said chamber being provided with an exit-opening, a cylindrical plug movable in said chamber and constituting a closure for the exit-opening, a steam and water passage communicating with the cylindrical chamber, a ball-valve carried by the cylindrical plug and constituting a closure for said passage, and means for forcing said plug in the direction of the steam and water passage.

4. In a gage-cock, a body portion for insertion through the boiler-shell and having a longitudinal aperture with valve-seats at the ends and with a chamber extending in advance of the outer end of said aperture and with a transverse aperture leading from said chamber, a stem movably engaging said aperture and of less diameter and greater length than the same, valves for seating respectively upon the opposite ends of said aperture and held alternately out of engagement with their seats by said stem, a plug operating in said chamber and bearing upon the outer one of said valves, and movable means bearing against said plug.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of the witnesses.

FRANK WALLACE LEIDEOKER.

Witnesses:

DoRR OAs'ro, B. S. BAKER, D. (1. Chem.

ICC

IIC

IIf 

